Thematic Bible: Against sin

Look carefully [at how you are living] so that no one falls away from God's unearned favor, and that no "poisonous plant sprouts up" to cause trouble and corrupt many people [Note: This is an analogy from Deut. 29:16-18 being used as a warning against the evil influence of wicked people], and that no one becomes immoral or ungodly, like Esau, who sold his right to the firstborn son's inheritance for a single meal.